Malicious PDF — malware analysis report

Static analysis result for SHA-256 8957caebd3451f01…

MALICIOUS

PDF

35.6 KB Created: 2021-05-23 07:52:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9d278fba0c5e311b344cbe9b96f8286b SHA-1: 16455707e22a12df4f035fe02354140e14f1ef00 SHA-256: 8957caebd3451f01bb1b124cc5d63e381d890f04f2695c0441cf8e02cf0e2f53
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a visual call-to-action button, strongly suggesting a phishing or social engineering attempt. The primary URL, 'https://netcdn.xyz/app/835599320/freer-tiktok-game-hack', indicates a lure for a fake hack or cheat. The ML classifier also flagged this PDF as malicious, increasing confidence in its suspicious nature. No scripts were extracted, but the presence of external URIs and the ML classification point to a likely attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/835599320/freer-tiktok-game-hack In PDF document text
    • https://www.manmed.info:443/images/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/freer-pro-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://www.manmed.info:443/images/minecraft-dungeons-free_GM479516143.pdfIn PDF document text
    • https://www.manmed.info:443/images/pokemon-go-free-download-for-pc_GM1094591345.pdfIn PDF document text
    • https://www.manmed.info:443/images/windows-10-minecraft-free-with-java_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00002d58.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2D58 27660 bytes
SHA-256: 2f0f652ad89fcdde09f520e93991d2fd0f8bf2c5ca85813d2f21ade45e270599
font_01_sfnt_off00006c69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C69 17456 bytes
SHA-256: eee1edbfcd64309e57980115a02bab568c84f21b085b7ef169a7723337a1b17d

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